Question

P’s income is 25% more than that of Q. By what percentage is Q’s income less than P’s?

Answer 1

Let Q’s income be 100.

P’s income is 25% more than that of Q.

∴ P’s income = `100 + 25/100 xx 100` = 125

Q’s income is 25 less than that of P

In percentage terms, Q’s income is less than P’s with respect to P’s income is

`("P" - "Q")/"P" xx 100 = (125 - 100)/125 xx 100`

= `25/125 xx 100`

= 20%